Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/09/07 09:10 | Dennis Klein v Tobias Slanina | L | 3-1 |
| Challenger Series TT | 2023/08/18 08:30 | Tobias Slanina v Dennis Klein | L | 0-3 |
| Challenger Series TT | 2023/07/03 14:30 | Tobias Slanina v Dennis Klein | L | 1-3 |
| Challenger Series TT | 2023/06/22 09:10 | Tobias Slanina v Dennis Klein | L | 2-3 |
| Challenger Series TT | 2023/05/08 06:30 | Tobias Slanina v Dennis Klein | L | 0-3 |
| Challenger Series TT | 2024/04/29 08:40 | Tobias Slanina v Alvaro Gainza | L | 2-3 |
| Challenger Series TT | 2024/03/29 13:10 | Finn Luu v Tobias Slanina | L | 3-2 |
| Challenger Series TT | 2024/03/29 12:20 | Liang Qiu v Tobias Slanina | L | 3-0 |
| Challenger Series TT | 2024/03/29 10:25 | Tobias Slanina v Finn Luu | L | 1-3 |
| Challenger Series TT | 2024/03/29 07:30 | Tobias Slanina v Oliver Both | W | 3-2 |
| Challenger Series TT | 2024/03/28 17:25 | Tobias Slanina v David Reitspies | L | 1-3 |
| Challenger Series TT | 2024/03/28 16:15 | Tobias Slanina v Diego Piguave | W | 3-0 |
| Challenger Series TT | 2024/03/28 12:10 | Tobias Slanina v Akito Itagaki | W | 3-2 |
| Challenger Series TT | 2024/04/29 08:20 | Michael Engelhardt v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2024/04/26 12:45 | Benjamin Fruchart v Dennis Klein | W | 2-3 |
| Challenger Series TT | 2024/04/26 11:20 | Albert Vilardell v Dennis Klein | W | 2-3 |
| Challenger Series TT | 2024/04/26 09:25 | Bohdan Sinkevych v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2024/04/26 08:15 | Dennis Klein v Albert Vilardell | W | 3-1 |
| Challenger Series TT | 2024/04/25 17:50 | Mike Hollo v Dennis Klein | L | 3-1 |
| Challenger Series TT | 2024/04/25 15:30 | Benjamin Fruchart v Dennis Klein | L | 3-0 |
| Challenger Series TT | 2024/04/25 13:45 | Dauud Cheaib v Dennis Klein | W | 2-3 |